Marine-engine governor.



No. 721,012. PATENTBD FEB.I1'7, 1903.

' E. G. BUCK.

MARINE ENGINE GOVERNOR. APPLIUATION FILED SEPT. 12, 1902.

HDMODEL. 2 SHEETS-SHEET 1.

rm: annals versus an. mom-mun. wnsmxc-mm a c.

1%. 721,012. I PATBNTED FEB'.17,190.3. ,E. 0. BUCK.

( MARINE ENGINE GOVERNOR.

. APPLIUATIGH FILED $22 2.12, 1902.

1m mmnn. 2 sums-sum 2.

mi nouns mm co. PHOTO-HIM mnmamn. u. c.

3 5 f or equivalent at the back of valves.

NITED S ATENT MARINE-ENGINE GOVERNOR.

SPECIFICATION forming part of Letters Patent N 0. 721,012, dated February 17, 1903. Application filed September 12, 1902. Serial No, l23,157. (lillii 'modeld T0 at whom it ina/y concern;

Be it known that I, EDWARD C. BUCK, a sub ject of the King of Great Britain, residing at Municipal Buildings, Pretoria, Transvaal, South Africa, have invented an Improved Means or Apparatus for Automatically Controlling the Supply of Steam to Marine Engines, of which the following is a specification.

My invention relates to means for automatically regulating or governing the how of steam in the main steam-pipe, so-that when the stern or screw-propeller end of the vessel pitches or rises more or less out of the water the flow of steam to the engine (or engines) is correspondingly more or less reduced or adapted to the altered resistance to the rotation of the propeller,

In order that the invention may be particularly described and ascertained, reference is hereby made to the accompanying drawings, in which similar letters indicate corresponding parts. I

Figure l is an elevation of the complete apparatus. Fig. 2 is a sectional end elevation of the valve. Fig. 3 is a section of same on the line A B of Fig. 2. r V 7 According to my invention I place in the main steam-pipe CL and as near to the boiler or boilers as convenient a valve or chest Z), having two steam-ports o, with aslide-valve d to each, and I actuate the valves by means of a spindle 6, formed with right and left hand screw-threads thereon working in nuts The spindle e is stepped ate and is provided with a collar or abutment if, whereby longitudinal motion of the spindle is prevented.

On the end of the valve-spindle, which projects through a stuffing-box g in the valvebox I), is fixed a toothed pinion h, engaging with a toothed quadrant v1, integral with or attached to a frame 75, which is pivotally supported at Z between standards we, fixed to the vessel. A bar it or portion of the frame carrying the quadrant is prolonged downward and forms, with a suitable weight 0 on its lower extremity, the actuating-pendulum.

When the vessel pitches and raises the stern or screw end of the vessel, the penduhim by its gravitation still retains its vertical position, and the toothed quadrant t',gearing with the pinion h on the valve-spindle, rotates the spindle e and simultaneously I The position of the pivot which carries the frame or pendulunij or other point of suspension may bein a higher orlower position relatively, to suit the requirements of the particnlar vessel.

I clairn 1. In apparatus for controlling the supply of steam to marine engines, the combination with a pendulum, of a toothed quadrant fixed to a frame integral or fixed to said pendulum and situated above the point of suspension of the pendulum, a valve-chest in the main steam-pipe near to the steam-generator, a pair of steam-ports in said valve-chest, a pair of slide-valves adapted to cover or close said ports, a spindle formed with right and left hand threads engaging nuts upon the back of said slide-valves, and a pinion upon said spindle engaging said toothed quadrant and adapted to be rotatedthereby, substantially as set forth.

2. In apparatus as aforesaid the combination with a valve-chest fitted with a pair of slide-valves mounted upon a right and left hand threaded spindle which carries a pinion adapted to be operated bya toothed quadrant attaohed to a pendulum constructed and operating as described, of guides adapted tosupport and take the transverse strain of the weighted end of said pendulum when the ship rolls, and a stop for restricting the action of said pendulu'in to movement in one direction only from the vertical, substantially as set forth.

In testimony whereof I have hereunto set my hand in presencepf three'subscribing wit- I EDWARD C. BUCK. Witnesses F Janus WHEELDON, H. D. BADOOCK, T. P. BURGESS. 

